<template>
  <form action="/">
    <van-search
        v-model="searchText"
        show-action
        placeholder="请输入搜索标签"
        @search="onSearch"
        @cancel="onCancel"
    />
  </form>
  <van-divider content-position="left">已选标签</van-divider>
  <div v-if="activeIds.length===0" style="margin: 16px">请选择标签</div>
  <van-row gutter="16" style="padding:0 16px">
    <van-col v-for="tag in activeIds">
      <van-tag  closeable size="medium" type="primary" @close="doclose(tag)" style="margin: 2px">
        {{ tag }}
      </van-tag>
    </van-col>
  </van-row>
  <van-divider content-position="left">选择标签</van-divider>
  <van-tree-select
      v-model:active-id="activeIds"
      v-model:main-active-index="activeIndex"
      :items="tagList"
  />
  <div style="padding: 16px">
    <van-button block type="primary" @click="doSearchResult">搜索</van-button>
  </div>
</template>

<script setup lang="ts">

import {ref} from "vue";
import {useRouter} from "vue-router";

const searchText = ref('');
const onSearch = () => {
  tagList.value = originTagList.map(parentTag =>{
    const tempChildren =  [...parentTag.children];
    const tempParentTag =  {...parentTag};
    tempParentTag.children = tempChildren.filter(item => item.text.includes(searchText.value))
    return tempParentTag;
  })
};
const onCancel = () => {
  searchText.value='';
  tagList.value = originTagList;
};

const activeIds = ref([]);
const activeIndex = ref(0);
const originTagList = [
  {
    text: '性别',
    children: [
      {text: '男', id: '男'},
      {text: '女', id: '女'},
      {text: '嫐', id: '嫐'},
      {text: '嬲', id: '嬲'},
    ],
  },
  {
    text: '年级',
    children: [
      {text: '大一', id: '大一'},
      {text: '大二', id: '大二'},
      {text: '大三', id: '大三'},

    ],
  },
];
let tagList = ref(originTagList)
const doclose = (tag: any) => {
  activeIds.value = activeIds.value.filter(item => {
    return item !== tag;
  })
};
const router = useRouter();
const doSearchResult=()=>{
  router.push({
    path:'/user/list',
    query:{
      tags:activeIds.value,
    }
  })
}
</script>


<style scoped>

</style>